Buffing wheel



Patented Feb. 18, 1947 UNITED .STATES PATENT lorrlcs BUFFIN G WHEEL Fritz E. Hendrickson, South Elgin, Ill., assignor of one-half to Murray Ireland, Elgin, Ill.

Application March 23, 1946, Serial No. 656,587

4 Claims.

My invention relates to buing Wheels.

An object of my invention is to provide a novel assembly of parts constituting a composite bufling wheel.

Another object of my invention is to provide a bufling wheel that shall be operative by an inexperienced man to give better results than obtainable heretofore by an experienced man.

Other objects of my invention will either be evident from a description of one form of device embodying my invention or will be pointed out during the course of such description and set forth in the appended claims.

In the drawings,

Figure 1 is a planar View of a section of my improved buing wheel comprising a plurality of plies,

Fig. 2 is a side elevational View of one metal supporting disc,

Fig. 3 is a side elevational view of another metal supporting disc,

Fig. 4 is a sectional View on the line 4-4 of Fig. 1,

Fig. 5 is a cross sectional view taken on the line 5 5 of Fig. 6,

Fig. 6 is a view in side elevation of the section of plies shown in Fig. 1 after having been folded on a diametral line and stitched,

Fig. '7 is a view, in front elevation, of the discs shown in Figs. 2 and 3 when in assembled position,

Fig. 8 is a top plan view of Fig. 6,

Fig. 9 is an assembled View of a bufling wheel embodying my invention,

Fig. 10 is a fragmentary View, in front elevation, showing the mounting of a section on the supporting discs,

Fig. 11 is a fragmentary sectional view taken on the line l I-I I of Fig. 10, and

Fig. 12 is a section taken on the line |2--l2 of Fig. 9.

Referring rst of all to Fig. 1 of the drawings, I have there shown a section 2| of buing wheel embodying my invention and comprising a, plurality of individual substantially oval-shaped plies 23 which may be of cotton cloth. A plurality of such plies about 4 in number may be assembled by being placed one upon the other after which two seams- 25 and 21 are provided extending substantially from one side of said plies to the other side at about one-half the distance from the center of the substantially oval ply and the periphery. Each of the plies 23 is provided with an elongated center opening 29 therethrough and a reinforcing member 3l, made Z of heavier cloth than are the plies 23, is secured against one side of the set of plies by a. plurality of seams 33.

The number of plies which are held together by seams 25, 21 and 33 may vary widelyy but I have found that if I place four such plies together and then lay on said four plies a plurality of threads 35 of fibrous material, such as sisal or Tampico, then place on said four plies and threads another set of four plies, after which I may place another set of threads 35 which are more or less uniformly spaced apart and then place another set of four plies on top of the other two sets and the two sets of threads 35, I obtain a buing wheel embodying my invention. The inner opening 29 is of elongated shape and the threads 35 of sisal or other similar brous material extend substantially at right angles to the longer dimension of opening 29. The sisal threads 35 located at substantially the middle portion of member 3l may be so bent as to avoid covering the opening 29.

I then fold the assembled sets of pluralities of plies on a diametral line which extends substantially at right angles to the threads 35 and obtain thereby a folded section substantially as shown in Fig. 6 of the drawings. I then provide a plurality of seams 31, 38 and 39 which hold together the adjacent folded halves, the seams 31 and 3S extending well toward lthe diametral line of the folded plies.

I provide means for supporting a plurality of such folded sections, said means comprising a pair of discs 4I and 43, each provided with a plurality of hook members 45. rI'he hook members 45 extend beyond the outer periphery of the discs 4I and 43 and the hooks on disc All extend all in one direction while the hooks on disc 43 extend in the opposite direction. Means are provided for holding the two discs lll and 43 in a'djacent xed position which may comprise a pin 41 in disc 43 which is adapted to fit into a corresponding opening 49 in disc 4| after the desired plurality of sections of the bufling wheel have been placed in proper operative position on the adjacent pairs of hooks which are positioned as shown in Fig. 7 of the drawings. The assembled position of said folded sections is shown in Fig. 9 of the drawings.

Fig. 9 of the drawings shows the mounting of five such sections upon the discs, it being understood that in this assembly the right-hand end portion of each section will abut the left-hand end portion of the next adjacent section.

In the assembly of a plurality of sections 2l on a pair of discs 4I and 43, the two metal discs are placed one on top of the other, with the hooks resting one above kthe other and extending in opposite directions after which sections 2|, shaped as shown in Fig. 6, are placed around the discs. The individual sections are then moved radially inwardly so that the hooks 45 enter the elongated openings 2e, after which the two discs are moved so that the cooperating pairs of adjacent hooks will take the positions shown in Figs. 7, 9 and ,10 when the pin 4l will enter opening 49. The pairs of hooks will thus hold the plurality of plies 23 in their proper operative position against the outer periphery of the discs 4l and 43 against the action of centrifugal force during operation.

Referring now to Fig. 12 of the drawings, I have there illustrated the mounting of three such assembled sets of sections upon a shaft 5I. This shaft is provided with a disc 53 which is adapted to support the sections and with a second supporting disc 55 which latter may be tightly clamped in place as by a nut 51 having screwthreaded engagement with the outer end portion 59 of the shaft 5 I It is to be understood that the outer end portion 59 of shaft 5l is of reduced diameter to provide an abutting portion'thereon for supporting 'disc '53.

The bung wheel embodying my invention is particularly useful for the bright polishing of steel objects although its use is not limited thereto. I have found by repeated tests that a bufng wheel of the kind hereinbefore described will provide a high polish on nickel-plated steel which is to be chrome plated and which is to have a high polish.

While I am of the opinion that the use of the threads of sisal or of other similar brous material is of benefit, without deleterious action of the threads of brous material, nevertheless I have found that 'puffing wheels embodying my invention are of greater value in polishing the ordinary mat surfaces of nickel-plated steel.

Various modifications may be made in the device embodyin-g my invention without departing from the spirit and scope thereof and all such modifications coming clearly within the scope of parallel to said rst named seams holding together said folded portions.

2. A composite bufng wheel comprising a plurality of individual buing sections, each section comprising a plurality of sets of centrally perforated cloth discs in close side-by-side position, a

v plurality of sets of parallel threads of brous the appended claims shall be considered as part of discs, each plurality of sets of discs being foldeddiametrically at right angles to said threads of fibrous material and a pair of seams substantially material between each two adjacent sets of discs, the length of said sets of threads being substantially equal to the Width of that part of the disc engaged by said sets of threads, a plurality of substantially straight seams extending through all of said sets of discs parallel to said sets of threads, each plurality of sets of discs being folded diametrally at right angles to said threads and a pair of seams extending substantially parallel to said first named seams and holding together said folded portions.

3. A composite bung wheel comprising a plurality of bulng sections, each section comprising a plurality of sets of centrally-perforated cloth discs in close side-by-side position, parallel threads of fibrous material having a length substantially equal to the width of that part of the disc engaged by said threads, a plurality of substantially straight seams extending across all of said sets of discs substantially parallel to said threads, each plurality of sets of discs being folded diametrally at right angles to said threads, a pair of spaced seams holding together said folded portions and extending substantially parallel to said rst mentioned seams, a piece of relatively heavy cloth around said central perforation and seams holding said heavy cloth against one side of said section.

4. A pulling wheel comprising a plurality of buflng sections adapted to be supported by a metal disc adjacent to the outer periphery thereof, a plurality of hook members on said disc engag- -ing said sections, each section comprising a pludiametrally at right angles to said threads, ar

pair of seams extending substantially parallel to said first named seams and inwardly from the periphery of said discs and holding together said folded portions, said hook members on said metal discs intertting with said central perforations to hold said sections with their ends overlapping the adjacent sections.

FRITZ E. HENDRICKSON. 

